While browsing and posting on another website (http://forums.justcommodores.com.au/forum.php) I noticed they allow you to preview your post before commiting it to the website.  It is handy for when putting pictures and strange formatting. 

Would it be possible to get this done here?

Also, another really handy feature is when replying to a thread you can see the rest of the page below the editor.  This means you can spell peoples names correctly/add extra quotes and refer back to what was said much easier than having two tabs open.

Would this be possible as well?